JERUSALEM—Israel and Greece have signed their biggest ever defence procurement deal, which Israel said on Sunday would strengthen political and economic ties between the countries. The agreement includes a $1.65 billion contract for the establishment and operation of a training centre for the Hellenic Air Force by Israeli defence contractor Elbit Systems over a 22-year period, Israel’s defence ministry said. The training centre will be modeled on Israel’s own flight academy and will be equipped with 10 M-346 training aircraft produced by Italian company Leonardo, the ministry said. Elbit will supply kits to upgrade and operate Greece’s T-6 aircraft and also provide training, simulators, and logistical support. “I am certain that (this programme) will upgrade the capabilities and strengthen the economies of Israel and Greece and thus the partnership between our two countries will deepen on the defence, economic and political levels,” said Israeli defence minister Benny Gantz. The announcement …